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Diffstat (limited to 'qemu/pixman/test/affine-test.c')
| -rw-r--r-- | qemu/pixman/test/affine-test.c | 324 |
1 files changed, 0 insertions, 324 deletions
diff --git a/qemu/pixman/test/affine-test.c b/qemu/pixman/test/affine-test.c deleted file mode 100644 index 8e19023a3..000000000 --- a/qemu/pixman/test/affine-test.c +++ /dev/null @@ -1,324 +0,0 @@ -/* - * Test program, which can detect some problems with affine transformations - * in pixman. Testing is done by running lots of random SRC and OVER - * compositing operations a8r8g8b8, x8a8r8g8b8, r5g6b5 and a8 color formats - * with random scaled, rotated and translated transforms. - * - * Script 'fuzzer-find-diff.pl' can be used to narrow down the problem in - * the case of test failure. - */ -#include <assert.h> -#include <stdlib.h> -#include <stdio.h> -#include "utils.h" - -#define MAX_SRC_WIDTH 16 -#define MAX_SRC_HEIGHT 16 -#define MAX_DST_WIDTH 16 -#define MAX_DST_HEIGHT 16 -#define MAX_STRIDE 4 - -/* - * Composite operation with pseudorandom images - */ -uint32_t -test_composite (int testnum, - int verbose) -{ - int i; - pixman_image_t * src_img; - pixman_image_t * dst_img; - pixman_transform_t transform; - pixman_region16_t clip; - int src_width, src_height; - int dst_width, dst_height; - int src_stride, dst_stride; - int src_x, src_y; - int dst_x, dst_y; - int src_bpp; - int dst_bpp; - int w, h; - pixman_fixed_t scale_x = 65536, scale_y = 65536; - pixman_fixed_t translate_x = 0, translate_y = 0; - pixman_op_t op; - pixman_repeat_t repeat = PIXMAN_REPEAT_NONE; - pixman_format_code_t src_fmt, dst_fmt; - uint32_t * srcbuf; - uint32_t * dstbuf; - uint32_t crc32; - FLOAT_REGS_CORRUPTION_DETECTOR_START (); - - prng_srand (testnum); - - src_bpp = (prng_rand_n (2) == 0) ? 2 : 4; - dst_bpp = (prng_rand_n (2) == 0) ? 2 : 4; - op = (prng_rand_n (2) == 0) ? PIXMAN_OP_SRC : PIXMAN_OP_OVER; - - src_width = prng_rand_n (MAX_SRC_WIDTH) + 1; - src_height = prng_rand_n (MAX_SRC_HEIGHT) + 1; - dst_width = prng_rand_n (MAX_DST_WIDTH) + 1; - dst_height = prng_rand_n (MAX_DST_HEIGHT) + 1; - src_stride = src_width * src_bpp + prng_rand_n (MAX_STRIDE) * src_bpp; - dst_stride = dst_width * dst_bpp + prng_rand_n (MAX_STRIDE) * dst_bpp; - - if (src_stride & 3) - src_stride += 2; - - if (dst_stride & 3) - dst_stride += 2; - - src_x = -(src_width / 4) + prng_rand_n (src_width * 3 / 2); - src_y = -(src_height / 4) + prng_rand_n (src_height * 3 / 2); - dst_x = -(dst_width / 4) + prng_rand_n (dst_width * 3 / 2); - dst_y = -(dst_height / 4) + prng_rand_n (dst_height * 3 / 2); - w = prng_rand_n (dst_width * 3 / 2 - dst_x); - h = prng_rand_n (dst_height * 3 / 2 - dst_y); - - srcbuf = (uint32_t *)malloc (src_stride * src_height); - dstbuf = (uint32_t *)malloc (dst_stride * dst_height); - - prng_randmemset (srcbuf, src_stride * src_height, 0); - prng_randmemset (dstbuf, dst_stride * dst_height, 0); - - if (prng_rand_n (2) == 0) - { - srcbuf += (src_stride / 4) * (src_height - 1); - src_stride = - src_stride; - } - - if (prng_rand_n (2) == 0) - { - dstbuf += (dst_stride / 4) * (dst_height - 1); - dst_stride = - dst_stride; - } - - src_fmt = src_bpp == 4 ? (prng_rand_n (2) == 0 ? - PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5; - - dst_fmt = dst_bpp == 4 ? (prng_rand_n (2) == 0 ? - PIXMAN_a8r8g8b8 : PIXMAN_x8r8g8b8) : PIXMAN_r5g6b5; - - src_img = pixman_image_create_bits ( - src_fmt, src_width, src_height, srcbuf, src_stride); - - dst_img = pixman_image_create_bits ( - dst_fmt, dst_width, dst_height, dstbuf, dst_stride); - - image_endian_swap (src_img); - image_endian_swap (dst_img); - - pixman_transform_init_identity (&transform); - - if (prng_rand_n (3) > 0) - { - scale_x = -65536 * 3 + prng_rand_n (65536 * 6); - if (prng_rand_n (2)) - scale_y = -65536 * 3 + prng_rand_n (65536 * 6); - else - scale_y = scale_x; - pixman_transform_init_scale (&transform, scale_x, scale_y); - } - if (prng_rand_n (3) > 0) - { - translate_x = -65536 * 3 + prng_rand_n (6 * 65536); - if (prng_rand_n (2)) - translate_y = -65536 * 3 + prng_rand_n (6 * 65536); - else - translate_y = translate_x; - pixman_transform_translate (&transform, NULL, translate_x, translate_y); - } - - if (prng_rand_n (4) > 0) - { - int c, s, tx = 0, ty = 0; - switch (prng_rand_n (4)) - { - case 0: - /* 90 degrees */ - c = 0; - s = pixman_fixed_1; - tx = pixman_int_to_fixed (MAX_SRC_HEIGHT); - break; - case 1: - /* 180 degrees */ - c = -pixman_fixed_1; - s = 0; - tx = pixman_int_to_fixed (MAX_SRC_WIDTH); - ty = pixman_int_to_fixed (MAX_SRC_HEIGHT); - break; - case 2: - /* 270 degrees */ - c = 0; - s = -pixman_fixed_1; - ty = pixman_int_to_fixed (MAX_SRC_WIDTH); - break; - default: - /* arbitrary rotation */ - c = prng_rand_n (2 * 65536) - 65536; - s = prng_rand_n (2 * 65536) - 65536; - break; - } - pixman_transform_rotate (&transform, NULL, c, s); - pixman_transform_translate (&transform, NULL, tx, ty); - } - - if (prng_rand_n (8) == 0) - { - /* Flip random bits */ - int maxflipcount = 8; - while (maxflipcount--) - { - int i = prng_rand_n (2); - int j = prng_rand_n (3); - int bitnum = prng_rand_n (32); - transform.matrix[i][j] ^= 1 << bitnum; - if (prng_rand_n (2)) - break; - } - } - - pixman_image_set_transform (src_img, &transform); - - switch (prng_rand_n (4)) - { - case 0: - repeat = PIXMAN_REPEAT_NONE; - break; - - case 1: - repeat = PIXMAN_REPEAT_NORMAL; - break; - - case 2: - repeat = PIXMAN_REPEAT_PAD; - break; - - case 3: - repeat = PIXMAN_REPEAT_REFLECT; - break; - - default: - break; - } - pixman_image_set_repeat (src_img, repeat); - - if (prng_rand_n (2)) - pixman_image_set_filter (src_img, PIXMAN_FILTER_NEAREST, NULL, 0); - else - pixman_image_set_filter (src_img, PIXMAN_FILTER_BILINEAR, NULL, 0); - - if (verbose) - { -#define M(r,c) \ - transform.matrix[r][c] - - printf ("src_fmt=%s, dst_fmt=%s\n", format_name (src_fmt), format_name (dst_fmt)); - printf ("op=%s, repeat=%d, transform=\n", - operator_name (op), repeat); - printf (" { { { 0x%08x, 0x%08x, 0x%08x },\n" - " { 0x%08x, 0x%08x, 0x%08x },\n" - " { 0x%08x, 0x%08x, 0x%08x },\n" - " } };\n", - M(0,0), M(0,1), M(0,2), - M(1,0), M(1,1), M(1,2), - M(2,0), M(2,1), M(2,2)); - printf ("src_width=%d, src_height=%d, dst_width=%d, dst_height=%d\n", - src_width, src_height, dst_width, dst_height); - printf ("src_x=%d, src_y=%d, dst_x=%d, dst_y=%d\n", - src_x, src_y, dst_x, dst_y); - printf ("w=%d, h=%d\n", w, h); - } - - if (prng_rand_n (8) == 0) - { - pixman_box16_t clip_boxes[2]; - int n = prng_rand_n (2) + 1; - - for (i = 0; i < n; i++) - { - clip_boxes[i].x1 = prng_rand_n (src_width); - clip_boxes[i].y1 = prng_rand_n (src_height); - clip_boxes[i].x2 = - clip_boxes[i].x1 + prng_rand_n (src_width - clip_boxes[i].x1); - clip_boxes[i].y2 = - clip_boxes[i].y1 + prng_rand_n (src_height - clip_boxes[i].y1); - - if (verbose) - { - printf ("source clip box: [%d,%d-%d,%d]\n", - clip_boxes[i].x1, clip_boxes[i].y1, - clip_boxes[i].x2, clip_boxes[i].y2); - } - } - - pixman_region_init_rects (&clip, clip_boxes, n); - pixman_image_set_clip_region (src_img, &clip); - pixman_image_set_source_clipping (src_img, 1); - pixman_region_fini (&clip); - } - - if (prng_rand_n (8) == 0) - { - pixman_box16_t clip_boxes[2]; - int n = prng_rand_n (2) + 1; - for (i = 0; i < n; i++) - { - clip_boxes[i].x1 = prng_rand_n (dst_width); - clip_boxes[i].y1 = prng_rand_n (dst_height); - clip_boxes[i].x2 = - clip_boxes[i].x1 + prng_rand_n (dst_width - clip_boxes[i].x1); - clip_boxes[i].y2 = - clip_boxes[i].y1 + prng_rand_n (dst_height - clip_boxes[i].y1); - - if (verbose) - { - printf ("destination clip box: [%d,%d-%d,%d]\n", - clip_boxes[i].x1, clip_boxes[i].y1, - clip_boxes[i].x2, clip_boxes[i].y2); - } - } - pixman_region_init_rects (&clip, clip_boxes, n); - pixman_image_set_clip_region (dst_img, &clip); - pixman_region_fini (&clip); - } - - pixman_image_composite (op, src_img, NULL, dst_img, - src_x, src_y, 0, 0, dst_x, dst_y, w, h); - - crc32 = compute_crc32_for_image (0, dst_img); - - if (verbose) - print_image (dst_img); - - pixman_image_unref (src_img); - pixman_image_unref (dst_img); - - if (src_stride < 0) - srcbuf += (src_stride / 4) * (src_height - 1); - - if (dst_stride < 0) - dstbuf += (dst_stride / 4) * (dst_height - 1); - - free (srcbuf); - free (dstbuf); - - FLOAT_REGS_CORRUPTION_DETECTOR_FINISH (); - return crc32; -} - -#if BILINEAR_INTERPOLATION_BITS == 7 -#define CHECKSUM 0xBE724CFE -#elif BILINEAR_INTERPOLATION_BITS == 4 -#define CHECKSUM 0x79BBE501 -#else -#define CHECKSUM 0x00000000 -#endif - -int -main (int argc, const char *argv[]) -{ - pixman_disable_out_of_bounds_workaround (); - - return fuzzer_test_main ("affine", 8000000, CHECKSUM, - test_composite, argc, argv); -} |